Gorisaki Banana is the gorilla-type mecha Buddyroid partner of Ryuji. He is modeled after a more humanoid Gorilla and has a driver's wheel on his face. Gorisaki is a faint-hearted character who falls easy, and apologizes immediately for it. Also, he is always worried about Ryuji, as the reason soon becomes clear. In the base, Gorisaki acts as a mechanic. He can combine with Buster Vehicle GT-02.